Performance problems on PC

Is anyone else having extreme problems running this game at a decent fps. I mean im getting lower than 25 fps! It's ridiculous! Even on 640*480 resolution-it lags at an intense rate. I've got an AMD 1.4 Ghz, 512 MB PC133, ATI Radeon 9700, 80 gig harddrive (8mb cache) Soundblaster live 5.1.
Any advice would be appreciated.

Well, i dont have the pc game, so i wouldnt know... Sorry.

1)DeFrag your Harddrive
2)goto start, execute, type DXDIAF, change hardware accelaration to a lower level.

Just some tips. I'm running a Pentium 3 on 1024x700 with no problems at all.